Operator.h 97.7 KB
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  { 
  public: 
    /** \brief 
     * Constructor. 
     */ 
    VecAndGradVec2AtQP_ZOT(DOFVectorBase<double> *dv, 
			   DOFVectorBase<double> *dGrd1, DOFVectorBase<double> *dGrd2, 
			   TertiaryAbstractFunction<double, 
			   double, WorldVector<double>, WorldVector<double> > *f_) 
      : ZeroOrderTerm(f_->getDegree()), vec(dv), vecGrd1(dGrd1), vecGrd2(dGrd2), f(f_) 
    { 
    }; 

    /** \brief
     * Implementation of \ref OperatorTerm::initElement().
     */
    void initElement(const ElInfo* elInfo, SubAssembler* subAssembler,
		     Quadrature *quad = NULL);

    /** \brief
     * Implements ZeroOrderTerm::getC().
     */
    void getC(const ElInfo *, int numPoints, double *C) const;

    /** \brief
     * Implements ZeroOrderTerm::eval().
     */
    void eval(int numPoints,
	      const double              *uhAtQP,
	      const WorldVector<double> *grdUhAtQP,
	      const WorldMatrix<double> *D2UhAtQP,
	      double *result,
	      double fac) const;

  protected: 
    /** \brief 
     * DOFVector to be evaluated at quadrature points. 
     */ 
    DOFVectorBase<double>* vec; 

    /** \brief 
     * Vector v at quadrature points. 
     */ 
    double *vecAtQPs; 

    /** \brief 
     * First DOFVector whose gradient is evaluated at quadrature points. 
     */ 
    DOFVectorBase<double>* vecGrd1; 

    /** \brief 
     * Gradient of first vector at quadrature points. 
     */ 
    WorldVector<double> *grad1AtQPs; 

    /** \brief 
     * Second DOFVector whose gradient is evaluated at quadrature points. 
     */ 
    DOFVectorBase<double>* vecGrd2; 

    /** \brief 
     * Gradient of second vector at quadrature points. 
     */ 
    WorldVector<double> *grad2AtQPs; 

    /** \brief 
     * Function for c. 
     */ 
    TertiaryAbstractFunction<double, double, WorldVector<double>, WorldVector<double> > *f; 
  }; 


  class VecOfDOFVecsAtQP_ZOT : public ZeroOrderTerm 
  { 
  public: 
    /** \brief 
     * Constructor. 
     */ 
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    VecOfDOFVecsAtQP_ZOT(const std::vector<DOFVectorBase<double>*>& dv, 
			 AbstractFunction<double, std::vector<double> > *f_) 
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      : ZeroOrderTerm(f_->getDegree()), vecs(dv), f(f_) 
    {
      vecsAtQPs.resize(vecs.size());
    }; 

    /** \brief
     * Implementation of \ref OperatorTerm::initElement().
     */
    void initElement(const ElInfo* elInfo, SubAssembler* subAssembler,
		     Quadrature *quad = NULL);

    /** \brief
     * Implements ZeroOrderTerm::getC().
     */
    void getC(const ElInfo *, int numPoints, double *C) const;

    /** \brief
     * Implements ZeroOrderTerm::eval().
     */
    void eval(int numPoints,
	      const double              *uhAtQP,
	      const WorldVector<double> *grdUhAtQP,
	      const WorldMatrix<double> *D2UhAtQP,
	      double *result,
	      double fac) const;

  protected: 
    /** \brief 
     * Vector of DOFVectors to be evaluated at quadrature points. 
     */ 
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    std::vector<DOFVectorBase<double>*> vecs; 
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    /** \brief 
     * Vectors at quadrature points. 
     */ 
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    std::vector<double*> vecsAtQPs; 
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    /** \brief 
     * Function for c. 
     */ 
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    AbstractFunction<double, std::vector<double> > *f; 
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  }; 

  class VecOfGradientsAtQP_ZOT : public ZeroOrderTerm 
  { 
  public: 
    /** \brief 
     * Constructor. 
     */ 
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    VecOfGradientsAtQP_ZOT(const std::vector<DOFVectorBase<double>*>& dv, 
			   AbstractFunction<double, std::vector<WorldVector<double>*> > *f_) 
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      : ZeroOrderTerm(f_->getDegree()), vecs(dv), f(f_) 
    {
      gradsAtQPs.resize(vecs.size());
    }; 

    /** \brief
     * Implementation of \ref OperatorTerm::initElement().
     */
    void initElement(const ElInfo* elInfo, SubAssembler* subAssembler,
		     Quadrature *quad = NULL);

    /** \brief
     * Implements ZeroOrderTerm::getC().
     */
    void getC(const ElInfo *, int numPoints, double *C) const;

    /** \brief
     * Implements ZeroOrderTerm::eval().
     */
    void eval(int numPoints,
	      const double              *uhAtQP,
	      const WorldVector<double> *grdUhAtQP,
	      const WorldMatrix<double> *D2UhAtQP,
	      double *result,
	      double fac) const;

  protected: 
    /** \brief 
     * Vector of DOFVectors to be evaluated at quadrature points. 
     */ 
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    std::vector<DOFVectorBase<double>*> vecs; 
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    /** \brief 
     * Vectors at quadrature points. 
     */ 
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    std::vector<WorldVector<double>*> gradsAtQPs; 
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    /** \brief 
     * Function for c. 
     */ 
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    AbstractFunction<double, std::vector<WorldVector<double>*> > *f; 
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  };


  class VecDivergence_ZOT : public ZeroOrderTerm
  {
  public: 
    /** \brief 
     * Constructor. 
     */ 
    VecDivergence_ZOT(int numComponents,
		      DOFVectorBase<double> *vec0,
		      DOFVectorBase<double> *vec1 = NULL,
		      DOFVectorBase<double> *vec2 = NULL)
      : ZeroOrderTerm(0) 
    {
      vecs.resize(numComponents);
      gradsAtQPs.resize(numComponents);
      vecs[0] = vec0;
      vecs[1] = vec1;
      vecs[2] = vec2;
    }; 

    /** \brief
     * Implementation of \ref OperatorTerm::initElement().
     */
    void initElement(const ElInfo* elInfo, SubAssembler* subAssembler,
		     Quadrature *quad = NULL);

    /** \brief
     * Implements ZeroOrderTerm::getC().
     */
    void getC(const ElInfo *, int numPoints, double *C) const;

    /** \brief
     * Implements ZeroOrderTerm::eval().
     */
    void eval(int numPoints,
	      const double              *uhAtQP,
	      const WorldVector<double> *grdUhAtQP,
	      const WorldMatrix<double> *D2UhAtQP,
	      double *result,
	      double fac) const;

  protected: 
    /** \brief 
     * Vector of DOFVectors to be evaluated at quadrature points. 
     */ 
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    std::vector<DOFVectorBase<double>*> vecs; 
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    /** \brief 
     * Vectors at quadrature points. 
     */ 
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    std::vector<WorldVector<double>*> gradsAtQPs; 
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  };



  class VecAndVecOfGradientsAtQP_ZOT : public ZeroOrderTerm
  {
  public:
    /** \brief
     * Constructor.
     */
    VecAndVecOfGradientsAtQP_ZOT(DOFVector<double> *vec_,
				 const std::vector<DOFVector<double>*>& dv,
				 BinaryAbstractFunction<double, double, std::vector<WorldVector<double>*> > *f_)
      : ZeroOrderTerm(f_->getDegree()), vec(vec_), vecs(dv), f(f_)
    {
      gradsAtQPs.resize(vecs.size());
    };

    /** \brief
     * Implementation of \ref OperatorTerm::initElement().
     */
    void initElement(const ElInfo* elInfo, SubAssembler* subAssembler,
		     Quadrature *quad = NULL);

    /** \brief
     * Implements ZeroOrderTerm::getC().
     */
    void getC(const ElInfo *, int numPoints, double *C) const;

    /** \brief
     * Implements ZeroOrderTerm::eval().
     */
    void eval(int numPoints,
	      const double              *uhAtQP,
	      const WorldVector<double> *grdUhAtQP,
	      const WorldMatrix<double> *D2UhAtQP,
	      double *result,
	      double fac) const;

  protected:
    /** \brief
     * DOFVector to be evaluated at quadrature points.
     */
    DOFVector<double>* vec;

    /** \brief
     * Vector v at quadrature points.
     */
    double *vecAtQPs;

    /** \brief
     * Vector of DOFVectors to be evaluated at quadrature points.
     */
    std::vector<DOFVector<double>*> vecs;

    /** \brief
     * Vectors at quadrature points.
     */
    std::vector<WorldVector<double>*> gradsAtQPs;

    /** \brief
     * Function for c.
     */
    BinaryAbstractFunction<double, double, std::vector<WorldVector<double>*> > *f;
  };



  // ============================================================================

  class General_ZOT : public ZeroOrderTerm
  {
  public:
    /** \brief
     * Constructor.
     */
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    General_ZOT(std::vector<DOFVectorBase<double>*> vecs,
		std::vector<DOFVectorBase<double>*> grads,
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		TertiaryAbstractFunction<double, 
		WorldVector<double>,
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		std::vector<double>, 
		std::vector<WorldVector<double> > > *f)
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      : ZeroOrderTerm(f->getDegree()),
	vecs_(vecs),
	grads_(grads),
	f_(f)
    {
      vecsAtQPs_.resize(vecs_.size());
      gradsAtQPs_.resize(grads_.size());
    };

    /** \brief
     * Implementation of \ref OperatorTerm::initElement().
     */
    void initElement(const ElInfo* elInfo, SubAssembler* subAssembler,
		     Quadrature *quad = NULL);

    /** \brief
     * Implements ZeroOrderTerm::getC().
     */
    void getC(const ElInfo *, int numPoints, double *C) const;

    /** \brief
     * Implements ZeroOrderTerm::eval().
     */
    void eval(int numPoints,
	      const double              *uhAtQP,
	      const WorldVector<double> *grdUhAtQP,
	      const WorldMatrix<double> *D2UhAtQP,
	      double *result,
	      double fac) const;

  protected:
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    std::vector<DOFVectorBase<double>*> vecs_; 
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    std::vector<DOFVectorBase<double>*> grads_;
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    TertiaryAbstractFunction<double, 
			     WorldVector<double>,
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			     std::vector<double>, 
			     std::vector<WorldVector<double> > > *f_;
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    WorldVector<double> *coordsAtQPs_;

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    std::vector<double*> vecsAtQPs_;
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    std::vector<WorldVector<double>*> gradsAtQPs_;
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  };


  // ============================================================================

  class GeneralParametric_ZOT : public ZeroOrderTerm
  {
  public:
    /** \brief
     * Constructor.
     */
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    GeneralParametric_ZOT(std::vector<DOFVectorBase<double>*> vecs,
			  std::vector<DOFVectorBase<double>*> grads,
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			  QuartAbstractFunction<double, 
			  WorldVector<double>,
			  WorldVector<double>,
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			  std::vector<double>, 
			  std::vector<WorldVector<double> > > *f)
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      : ZeroOrderTerm(f->getDegree()),
	vecs_(vecs),
	grads_(grads),
	f_(f)
    {
      vecsAtQPs_.resize(vecs_.size());
      gradsAtQPs_.resize(grads_.size());
    };

    /** \brief
     * Implementation of \ref OperatorTerm::initElement().
     */
    void initElement(const ElInfo* elInfo, SubAssembler* subAssembler,
		     Quadrature *quad = NULL);

    /** \brief
     * Implements ZeroOrderTerm::getC().
     */
    void getC(const ElInfo *, int numPoints, double *C) const;

    /** \brief
     * Implements ZeroOrderTerm::eval().
     */
    void eval(int numPoints,
	      const double              *uhAtQP,
	      const WorldVector<double> *grdUhAtQP,
	      const WorldMatrix<double> *D2UhAtQP,
	      double *result,
	      double fac) const;

  protected:
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    std::vector<DOFVectorBase<double>*> vecs_; 
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    std::vector<DOFVectorBase<double>*> grads_;
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    QuartAbstractFunction<double, 
			  WorldVector<double>,
			  WorldVector<double>,
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			  std::vector<double>, 
			  std::vector<WorldVector<double> > > *f_;
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    WorldVector<double> *coordsAtQPs_;

    WorldVector<double> elementNormal_;

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    std::vector<double*> vecsAtQPs_;
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    std::vector<WorldVector<double>*> gradsAtQPs_;
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  };



  /*****************************************************************************/
  /******      Operators for the least-square finite element method      *******/
  /*****************************************************************************/


  // ============================================================================
  // ===== class Operator =======================================================
  // ============================================================================

  /** \brief
   * An Operator holds all information needed to assemble the system matrix
   * and the right hand side. It consists of four OperatorTerm lists each storing
   * Terms of a specific order and type. You can define your own Operator by 
   * creating an empty Operator and than adding OperatorTerms to it.
   * An Operator can by of type MATRIX_OPERATOR, if it's used to assemble the
   * system matrix on the left hand side, or it can be of type VECTOR_OPERATOR,
   * if it's used to assemble the right hand side vector. If an Operator gives
   * contributions to both sides of the system it is a MATRIX_OPERATOR and a
   * VECTOR_OPERATOR in one instance. This allows to efficiently reuse element 
   * matrices once calculated.
   * By calling \ref getElementMatrix() or \ref getElementVector() one can 
   * initiate the assembling procedure. Therefor each Operator has its own
   * Assembler, especially created for this Operator, by the first call of
   * \ref getElementMatrix() or \ref getElementVector(). 
   */
  class Operator
  {
  public:
    MEMORY_MANAGED(Operator);

    /** \brief
     * Constructs an empty Operator of type operatorType for the given 
     * FiniteElemSpace. 
     * The type is given by a Flag that can contain the values MATRIX_OPERATOR,
     * VECTOR_OPERATOR, or MATRIX_OPERATOR | VECTOR_OPERATOR. This type specifies 
     * whether the Operator is used on the left hand side, the right hand side,
     * or on both sides of the system. 
     */
    Operator(Flag operatorType,
Thomas Witkowski's avatar
Thomas Witkowski committed
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	     const FiniteElemSpace *rowFESpace,
	     const FiniteElemSpace *colFESpace = NULL);
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    /** \brief
     * Destructor.
     */
    virtual ~Operator() {};

    /** \brief
     * Sets \ref optimized.
     */
    inline void useOptimizedAssembler(bool opt) {
      optimized = opt;
    };

    /** \brief
     * Returns \ref optimized.
     */
    inline bool isOptimized() {
      return optimized;
    };

    /** \brief
     * Adds a SecondOrderTerm to the Operator
     */
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    template <typename T>
    void addSecondOrderTerm(T *term);
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    /** \brief
     * Adds a FirstOrderTerm to the Operator
     */
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    template <typename T>
    void addFirstOrderTerm(T *term, 
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			   FirstOrderType type = GRD_PHI);
    /** \brief
     * Adds a ZeroOrderTerm to the Operator
     */
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    template <typename T>
    void addZeroOrderTerm(T *term);
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    /** \brief
     * Calculates the element matrix for this ElInfo and adds it multiplied by
     * factor to userMat.
     */
    virtual void getElementMatrix(const ElInfo *elInfo, 
				  ElementMatrix *userMat, 
				  double factor = 1.0);

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    virtual void getElementMatrix(const ElInfo *rowElInfo,
				  const ElInfo *colElInfo,
				  ElementMatrix *userMat,
				  double factor = 1.0);

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    /** \brief
     * Calculates the element vector for this ElInfo and adds it multiplied by
     * factor to userVec.
     */
    virtual void getElementVector(const ElInfo *elInfo, 
				  ElementVector *userVec, 
				  double factor = 1.0);



    /** \brief
     * Returns \ref rowFESpace
     */
    inline const FiniteElemSpace *getRowFESpace() { 
      return rowFESpace; 
    };

    /** \brief
     * Returns \ref colFESpace
     */
    inline const FiniteElemSpace *getColFESpace() { 
      return colFESpace; 
    };

    /** \brief
     * Sets \ref uhOld.
     */
    void setUhOld(const DOFVectorBase<double> *uhOld);

    /** \brief
     * Returns \ref uhOld.
     */
    inline const DOFVectorBase<double> *getUhOld() {
      return uhOld;
    };

    /** \brief
     * Returns \ref assembler
     */
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    Assembler *getAssembler(int rank);
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    /** \brief
     * Sets \ref assembler
     */
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    void setAssembler(int rank, Assembler *ass);
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    /** \brief
     * Returns whether this is a matrix operator.
     */
    inline const bool isMatrixOperator() {
      return type.isSet(MATRIX_OPERATOR);
    };

    /** \brief
     * Returns whether this is a vector operator
     */
    inline const bool isVectorOperator() {
      return type.isSet(VECTOR_OPERATOR);
    };

    /** \brief
     * Sets \ref fillFlag, the flag used for this Operator while mesh traversal.
     */
    inline void setFillFlag(Flag f) { 
      fillFlag = f; 
    };

    /** \brief
     * Returns \ref fillFlag
     */
    inline Flag getFillFlag() { 
      return fillFlag; 
    };

    /** \brief
     * Initialization of the needed SubAssemblers using the given quadratures. 
     */
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    void initAssembler(int rank,
		       Quadrature *quad2,
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		       Quadrature *quad1GrdPsi,
		       Quadrature *quad1GrdPhi,
		       Quadrature *quad0);


    /** \brief
     * Calculates the needed quadrature degree for the given order. 
     */
    int getQuadratureDegree(int order, FirstOrderType firstOrderType = GRD_PHI);

    /** \brief
     * Evaluation of all terms in \ref zeroOrder. 
     */
    void evalZeroOrder(int numPoints,
		       const double              *uhAtQP,
		       const WorldVector<double> *grdUhAtQP,
		       const WorldMatrix<double> *D2UhAtQP,
		       double *result,
		       double factor) const
    {
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      int myRank = omp_get_thread_num();

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      std::vector<OperatorTerm*>::const_iterator termIt;
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      for (termIt = zeroOrder[myRank].begin(); 
	   termIt != zeroOrder[myRank].end(); 
	   ++termIt) {
	(*termIt)->eval(numPoints, uhAtQP, grdUhAtQP, D2UhAtQP, result, factor);
      }
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    };


    /** \brief
     * Evaluation of all terms in \ref firstOrderGrdPsi. 
     */
    void evalFirstOrderGrdPsi(int numPoints,
			      const double              *uhAtQP,
			      const WorldVector<double> *grdUhAtQP,
			      const WorldMatrix<double> *D2UhAtQP,
			      double *result,
			      double factor) const
    {
3636
3637
      int myRank = omp_get_thread_num();

3638
      std::vector<OperatorTerm*>::const_iterator termIt;
3639
3640
3641
3642
3643
      for (termIt = firstOrderGrdPsi[myRank].begin(); 
	   termIt != firstOrderGrdPsi[myRank].end(); 
	   ++termIt) {
	(*termIt)->eval(numPoints, uhAtQP, grdUhAtQP, D2UhAtQP, result, factor);
      }
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
    };

    /** \brief
     * Evaluation of all terms in \ref firstOrderGrdPhi. 
     */
    void evalFirstOrderGrdPhi(int numPoints,
			      const double              *uhAtQP,
			      const WorldVector<double> *grdUhAtQP,
			      const WorldMatrix<double> *D2UhAtQP,
			      double *result,
			      double factor) const
    {
3656
3657
      int myRank = omp_get_thread_num();

3658
      std::vector<OperatorTerm*>::const_iterator termIt;
3659
3660
3661
3662
3663
      for (termIt = firstOrderGrdPhi[myRank].begin(); 
	   termIt != firstOrderGrdPhi[myRank].end(); 
	   ++termIt) {
	(*termIt)->eval(numPoints, uhAtQP, grdUhAtQP, D2UhAtQP, result, factor);
      }
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
    };


    /** \brief
     * Evaluation of all terms in \ref secondOrder. 
     */
    void evalSecondOrder(int numPoints,
			 const double              *uhAtQP,
			 const WorldVector<double> *grdUhAtQP,
			 const WorldMatrix<double> *D2UhAtQP,
			 double *result,
			 double factor) const
    {
3677
3678
      int myRank = omp_get_thread_num();

3679
      std::vector<OperatorTerm*>::const_iterator termIt;
3680
3681
3682
3683
3684
      for (termIt = secondOrder[myRank].begin(); 
	   termIt != secondOrder[myRank].end(); 
	   ++termIt) {
	(*termIt)->eval(numPoints, uhAtQP, grdUhAtQP, D2UhAtQP, result, factor);
      }
3685
3686
3687
3688
3689
3690
3691
3692
3693
    };

    /** \brief
     * Weak evaluation of all terms in \ref secondOrder. 
     */
    void weakEvalSecondOrder(int numPoints,
			     const WorldVector<double> *grdUhAtQP,
			     WorldVector<double> *result) const
    {
3694
3695
      int myRank = omp_get_thread_num();

3696
      std::vector<OperatorTerm*>::const_iterator termIt;
3697
3698
3699
3700
3701
      for (termIt = secondOrder[myRank].begin(); 
	   termIt != secondOrder[myRank].end(); 
	   ++termIt) {
	static_cast<SecondOrderTerm*>(*termIt)->weakEval(numPoints, grdUhAtQP, result);
      }
3702
3703
3704
3705
3706
3707
3708
3709
    };
  
    /** \brief
     * Calls getLALt() for each term in \ref secondOrder 
     * and adds the results to LALt.
     */
    void getLALt(const ElInfo *elInfo, int numPoints, DimMat<double> **LALt) const
    {
3710
3711
      int myRank = omp_get_thread_num();

3712
      std::vector<OperatorTerm*>::const_iterator termIt;
3713
3714
3715
3716
3717
      for (termIt = secondOrder[myRank].begin(); 
	   termIt != secondOrder[myRank].end(); 
	   ++termIt) {
	static_cast<SecondOrderTerm*>(*termIt)->getLALt(elInfo, numPoints, LALt);
      }
3718
3719
3720
3721
3722
3723
3724
3725
    };
  
    /** \brief
     * Calls getLb() for each term in \ref firstOrderGrdPsi 
     * and adds the results to Lb.
     */
    void getLbGrdPsi(const ElInfo *elInfo, int numPoints, VectorOfFixVecs<DimVec<double> >& Lb) const
    {
3726
3727
      int myRank = omp_get_thread_num();

3728
      std::vector<OperatorTerm*>::const_iterator termIt;
3729
3730
3731
3732
3733
      for (termIt = firstOrderGrdPsi[myRank].begin(); 
	   termIt != firstOrderGrdPsi[myRank].end(); 
	   ++termIt) {
	static_cast<FirstOrderTerm*>(*termIt)->getLb(elInfo, numPoints, Lb);
      }
3734
3735
3736
3737
3738
3739
3740
3741
    };

    /** \brief
     * Calls getLb() for each term in \ref firstOrderGrdPhi 
     * and adds the results to Lb.
     */
    void getLbGrdPhi(const ElInfo *elInfo, int numPoints, VectorOfFixVecs<DimVec<double> >& Lb) const
    {
3742
3743
      int myRank = omp_get_thread_num();

3744
      std::vector<OperatorTerm*>::const_iterator termIt;
3745
3746
3747
3748
3749
      for (termIt = firstOrderGrdPhi[myRank].begin(); 
	   termIt != firstOrderGrdPhi[myRank].end(); 
	   ++termIt) {
	static_cast<FirstOrderTerm*>(*termIt)->getLb(elInfo, numPoints, Lb);
      }
3750
3751
3752
3753
3754
3755
3756
3757
    };

    /** \brief
     * Calls getC() for each term in \ref zeroOrder
     * and adds the results to c.
     */
    void getC(const ElInfo *elInfo, int numPoints, double *c) const
    {
3758
3759
      int myRank = omp_get_thread_num();

3760
      std::vector<OperatorTerm*>::const_iterator termIt;
3761
3762
3763
3764
3765
      for (termIt = zeroOrder[myRank].begin(); 
	   termIt != zeroOrder[myRank].end(); 
	   ++termIt) {
	static_cast<ZeroOrderTerm*>(*termIt)->getC(elInfo, numPoints, c);
      }
3766
3767
3768
3769
3770
3771
    };

    /** \brief
     * Returns true, if there are second order terms. Returns false otherwise.
     */
    inline bool secondOrderTerms() {
3772
      return secondOrder[omp_get_thread_num()].size() != 0;
3773
3774
3775
3776
3777
3778
3779
    };

    /** \brief
     * Returns true, if there are first order terms (grdPsi). 
     * Returns false otherwise.
     */
    inline bool firstOrderTermsGrdPsi() {
3780
      return firstOrderGrdPsi[omp_get_thread_num()].size() != 0;
3781
3782
3783
3784
3785
3786
3787
    };

    /** \brief
     * Returns true, if there are first order terms (grdPhi). 
     * Returns false otherwise.
     */
    inline bool firstOrderTermsGrdPhi() {
3788
      return firstOrderGrdPhi[omp_get_thread_num()].size() != 0;
3789
3790
3791
3792
3793
3794
3795
    };

    /** \brief
     * Returns true, if there are zero order terms.
     * Returns false otherwise.
     */
    inline bool zeroOrderTerms() {
3796
      return zeroOrder[omp_get_thread_num()].size() != 0;
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
    };

  public:
    /** \brief
     * Constant type flag for matrix operators
     */
    static const Flag MATRIX_OPERATOR;

    /** \brief
     * Constant type flag for vector operators
     */
    static const Flag VECTOR_OPERATOR;

  protected:
    /** \brief
     * FiniteElemSpace for matrix rows and element vector
     */
    const FiniteElemSpace *rowFESpace;

    /** \brief
     * FiniteElemSpace for matrix columns. Can be equal to \rowFESpace.
     */
    const FiniteElemSpace *colFESpace;

    /** \brief
     * Number of rows in the element matrix
     */
    int nRow;

    /** \brief
     * Number of columns in the element matrix
     */
    int nCol;

    /** \brief
     * Type of this Operator.
     */
    Flag type;

    /** \brief
     * Flag for mesh traversal
     */
    Flag fillFlag;

    /** \brief
     * Calculates the element matrix and/or the element vector. It is
     * created especially for this Operator, when \ref getElementMatrix()
     * or \ref getElementVector is called for the first time.
     */
3846
    std::vector<Assembler*> assembler;
3847
3848
3849
3850

    /** \brief
     * List of all second order terms
     */
3851
    std::vector< std::vector<OperatorTerm*> > secondOrder;
3852
3853
3854
3855

    /** \brief
     * List of all first order terms derived to psi
     */
3856
    std::vector< std::vector<OperatorTerm*> > firstOrderGrdPsi;
3857
3858
3859
3860

    /** \brief
     * List of all first order terms derived to phi
     */
3861
    std::vector< std::vector<OperatorTerm*> > firstOrderGrdPhi;
3862
3863
3864
3865

    /** \brief
     * List of all zero order terms
     */
3866
    std::vector< std::vector<OperatorTerm*> > zeroOrder;
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889

    /** \brief
     * Pointer to the solution of the last timestep. Can be used if the 
     * Operator is MATRIX_OPERATOR and VECTOR_OPERATOR for a more efficient
     * assemblage of the element vector when the element matrix was already
     * computed.
     */
    const DOFVectorBase<double> *uhOld;

    /** \brief
     * Spezifies whether optimized assemblers are used or not.
     */
    bool optimized;

    friend class Assembler;
    friend class SubAssembler;
    friend class ZeroOrderAssembler;
    friend class FirstOrderAssembler;
    friend class SecondOrderAssembler;
  };

}

3890
3891
#include "Operator.hh"

3892
#endif // AMDIS_OPERATOR_H
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